Commands in Spanish can be expressed by the imperative forms of the verb
and by the present subjunctive.
In English, commands generally take the pattern of ‘Do that!’ (a positive
command), ‘Don’t do that!’ (a negative command) or ‘Let’s do that!’ (a 1st
person plural command).
In addition, users of Spanish have to take account of (i) whether the
command is addressed to one or more persons in familiar speech (túor
vosotros/as[SP], or vos[LA] or ustedes[LA]) and (ii) whether it is used in
polite speech (usted, ustedes) – see 8.1.1.
For the position of object pronouns in commands, see 8.5.1.
Forms of the imperative
Imperative forms with tú and vosotros [SP]
Imperative forms of the verb exist only for 2nd person familiaruse in the
singular and plural, and even then can only be used when the command is
positiveor affirmative(not negative).
The singular form used with túis generally identical with the 3rd person of
the present indicative, whether that is regular or not. The plural form, used
only in Spain with vosotros, is generally obtained by replacing the final -rof
the infinitive with -d. However, with the exception of irse > idos, this -dis
omitted from reflexive verbs of all conjugations before the pronoun os.
19.1.1
19.1